DIN 314 Wing Nuts, Edged Wings (American Form)
DIN 314 wing nuts with edged wings, American form, M4 to M12: toleranced wing and nut geometry, plus UNI 5448 and market-common reference tables to M22.
Last updated: 2026-11
Specifications
DIN 314 is the American-form wing nut with edged (flat-faced) wings — the shape that takes real hand torque without slipping. The collected 09/1999-edition table runs M4 to M12 fully toleranced: wing span e max/min, wing height h max/min, wing gap g min, nut height m max/min and the bore D1 max/min (D1 min 7 at M4 to 21 at M12), so the fit of both the thread and the wing clearances is controlled. Two reference tables sit beside it on the source page: UNI 5448:1971 (M3 to M16, approximate values with mass per 1000 pcs, 1.7 at M3-class to 60 at M16) and a market-common American-form ladder out to M22 — both carried verbatim, because maintenance work regularly meets wing nuts stamped to neither DIN nor ISO. Hand-adjustable fixtures, formwork, hose and cable clamps are the duty.
| Standard / scope | DIN 314 wing nuts, edged wings, American form — M4 to M12, edition 09/1999 (fully toleranced) |
|---|---|
| Wing geometry | e max/min (span), h max/min (wing height), g min (gap) per size — the hand-engagement dimensions |
| Nut geometry | m max/min (height) and bore D1 max/min: D1 min 7 (M4) to 21 (M12) |
| Reference tables | UNI 5448:1971 M3–M16 approximate values + mass (kg/1000, ρ=7,85 kg/dm³); market-common American-form values M3–M22 — verbatim, beside the DIN table |
| Not tabulated | Material, finish, strength — per RFQ |
Materials
- Wing nuts order in malleable iron and cast steel for the clamping duty, stamped steel for light duty, brass and stainless for corrosive or decorative work. Wing geometry is where quality differs: cast wings keep the edged face true under high hand torque, stamped wings deform. State thread and finish, and if the nut will see repeated heavy hand-tightening say so — it changes what we quote
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (DIN 314 Wing Nuts, Edged Wings (American Form)) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
DIN 315, DIN 314 — which wing nut does my application take?
The registered DIN 315 page carries the standard rounded-wing (butterfly) wing nut; DIN 314 here is the American form with edged wings. The edge converts finger pressure into torque — where a rounded wing slips, the flat face grips, so 314 owns the high-reuse clamping jobs (fixtures, formwork, adjustment hardware) and 315 the quick quarter-turn jobs (hoses, covers, battery terminals). Their dimensions are close but not identical, and the DIN 314 page is the only one carrying full min/max tolerance plus the UNI/market reference tables — relevant if you are auditing old hardware whose stamps do not match the drawing.
Why does the page carry UNI and "market-common" tables beside the DIN values?
Because wing nuts are one of the categories where legacy and trade hardware circulates in three geometries at once: the DIN 314 values (toleranced), the Italian UNI 5448:1971 values (approximate, one size range wider) and the de-facto trade American-form values (widest range, out to M22). The collected source printed all three, and the page keeps all three verbatim — that is the practical audit path when a stamped part must be identified from its measurements. For new orders the DIN table governs; for replacement of unidentified hardware, measure e/h/g and read across the three tables, then send the measurements with the RFQ and we match the form.
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support